government of india ministry of power central …

GOVERNMENT OF INDIA

MINISTRY OF POWER CENTRAL ELECTRICITY AUTHORITY

MAY 2020

स�यमेव जयत े

GUIDELINES FOR THE VALIDITY PERIOD OF GUIDELINES FOR THE VALIDITY PERIOD OF GUIDELINES FOR THE VALIDITY PERIOD OF GUIDELINES FOR THE VALIDITY PERIOD OF

TYPE TEST(S) CONDUCTED ON MAJOR TYPE TEST(S) CONDUCTED ON MAJOR TYPE TEST(S) CONDUCTED ON MAJOR TYPE TEST(S) CONDUCTED ON MAJOR

ELECTRICAL EQUIPMENT IN POWER ELECTRICAL EQUIPMENT IN POWER ELECTRICAL EQUIPMENT IN POWER ELECTRICAL EQUIPMENT IN POWER

TRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSION

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POWER SYSTEM ENGINEERING & TECHNOLOGY DEVELOPMENT POWER SYSTEM ENGINEERING & TECHNOLOGY DEVELOPMENT POWER SYSTEM ENGINEERING & TECHNOLOGY DEVELOPMENT POWER SYSTEM ENGINEERING & TECHNOLOGY DEVELOPMENT

CENTRAL CENTRAL CENTRAL CENTRAL ELECTRICITY AUTHORITYELECTRICITY AUTHORITYELECTRICITY AUTHORITYELECTRICITY AUTHORITY

भारत सरकार

Government of IndiaGovernment of IndiaGovernment of IndiaGovernment of India केीय िव�ुत �ािधकरण

Central Electricity AuthorityCentral Electricity AuthorityCentral Electricity AuthorityCentral Electricity Authority िव�ुत मं�ालय

Ministry of PowerMinistry of PowerMinistry of PowerMinistry of Power नई िद�ली

New DelhiNew DelhiNew DelhiNew Delhi

MAY 2020MAY 2020MAY 2020MAY 2020

भा�रत सरका�रGovernment of India

वि�द्युत मं�त्रा�लयMinistry of Power

का� न् द्री� य वि� द्यु त प्रा� वि� कारणCentral Electricity Authority

वि�द्युत प्राण�ल� अविभाय��वित्राका� ए�� प्रा�द्यु�वि�का� वि�का�स प्राभा��Power System Engineering & Technology Development Division

Sewa Bhawan, R.K. PuramNew Delhi – 66

To,

As per attached list.

वि�षय /SUB.:- Extension of validity date of Type Test Certificate and amendment toCEA’s “Guidelines for the Validity Period of Type Test(s) conducted on MajorElectrical Equipment in Power Transmission System” - reg.

As you are aware that CEA had prepared “Guidelines for the Validity Period of TypeTest(s) conducted on Major Electrical Equipment in Power Transmission System”, inconsultation with various utilities, manufacturers, testing agencies, IEEMA and otherstakeholders. The guidelines were circulated to all Stakeholders, vide CEA’s letter No. CEA-PS-14-80/1/2019-PSETD Division/195-271 dated 11.05.2020 and the same is also availablein CEA’s website at the link: https://cea.nic.in/wp-content/uploads/pse___td/2020/08/Approved_Type%20test%20validity%20guidelines.pdf

2. Due to COVID pandemic, one year extension on validity period for type test ofequipment listed in abovementioned document was provided in October 2020 which is validupto 30th September 2021. At that time it was anticipated that this pandemic would be overand manufacturing & testing process would become normal again. However, pandemicresurfaced with even more intensity which forced closure of manufacturing units and testinglaboratories. Manufacturers have requested for further extension to validity period as theycould not get opportunity to carry out type test.

3. Complete testing facilities for GIS and Hybrid switchgear are not available in Indiaand manufacturers need to send their equipment abroad for testing which is not only timeconsuming but also costly affair. Since GIS manufacturing is not that old in India and most ofthe manufacturers follow the design and process of their parent company/collaborator,manufacturers have requested for accepting type test report conducted on product

File No.CEA-PS-14-80/1/2019-PSETD Division-Part(2)

manufactured by parent company. Further, many of the utilities already accept these testreports.

4. Keeping in view the difficulties being faced by Indian manufactures, it has beendecided that:

(a) The Type test reports, which could not be re-validated due to COVIDpandemic since 23rd March 2020, shall be treated as valid up to 30thSeptember 2022.

(b) Para 2(g) of CEA’s “Guidelines for the Validity Period of Type Test(s) conductedon Major Electrical Equipment in Power Transmission System” shall be read asfollows: “The equipment shall be supplied from the same manufacturingworks, where from the sample unit was manufactured andsuccessfully type tested as per relevant standard (IS/IEC). However, in caseof GIS and Hybrid switchgear, type test reports of parentcompany/collaborator may be accepted provided same design and process bywhich parent company/collaborator has manufactured the equipment, hasbeen followed by the Indian manufacturer.”

This issues with the approval of Member (PS), CEA.

Yours faithfully,

भंवर सि�हं मीना/ Bhanwar Singh Meena

उप-निनदेशक/ Deputy Director Telephone: 26732358

Email: [email protected]


Digitally signed by BHANWARSINGH MEENADate: 2021.09.17 12:21:40 IST

Signature Not Verified

C Central Electricity Authority

Guidelines for the Validity Period of Type Test(s) conducted on Major Electrical Equipment in Power Transmission System Page 1

1. Back ground:

Prior to commercialization, any equipment passes through product

development stage, which requires various testing to achieve

desired functionalities of the equipment. Once, the equipment

design is finalized, it is subjected to type tests before going for

commercial production. Type tests are generally performed on any

equipment conforming to relevant National/ International

standards to validate the design and to demonstrate its functional

requirement meeting the intended application and reliable

performance during its service life. These tests are also called

‘Proof Tests’ or ‘Design Validation Tests’. Such tests are not

required to be performed on each unit of the equipment but are

performed on representative design of the equipment. Moreover,

successfully type tested equipment does not guarantee that there

will be no failure of the equipment as the equipment is likely to

encounter various types of electrical, mechanical, thermal and

environmental stresses during its service life which may not match

exactly with the conditions simulated during testing.

[Note: The word “equipment” used in the document refers to all items listed in

the Table covered under 2(h)]

National/ International standards does not specify any period for

validity of type test results. Ideally, repetition of type tests on the

equipment is not desirable so long as there is no change in basic

design/ technology, mechanical construction including physical

dimensions (e.g. unit spacing, total height, shed diameter, arcing

distance, shed profile, and creepage distance etc. of an insulator),

material, functionality of the equipment, performance



characteristic and manufacturing process. The change in design

includes change in voltage stress, thermal stress, mechanical

stress, current density, flux density, degree of protection etc. The

change in materials includes enclosure material (magnetic, non-

magnetic etc.), transformer core material (grades of CRGO,

Amorphous, mu metal), insulating material (solid, liquid, gaseous),

electronic parts (processor, memory, principal/ main relays etc.)

etc. If relevant standard (IS/IEC) of the equipment is

revised/amended, fresh type test is warranted even if equipment

has not changed in design/ material etc. provided there is change

in test procedure/ method/ criteria or test levels in the revised

standard. However, many of the equipment involves manual

intervention during manufacturing process and comprises of a

number of bought out items. The quality of workmanship and the

quality of components/ materials used in manufacturing of the

equipment may change/ deteriorate over the years affecting overall

quality, reliability and performance during service life of the

equipment. Therefore, some utilities insists for repetition of type

tests after a reasonable period of time to ensure that equipment

quality, performance and reliability of the equipment is being

maintained. The frequency of repetition of type tests by Indian

utilities, even if the equipment has remained essentially the same

(in terms of basic design, construction, material and

manufacturing process etc.) has become a matter of concern as it

varies from utility to utility. Few utilities even do not accept type

tests conducted on equipment of same rating /specifications and

demand for repetition of type test(s). Sometimes testing time

exceeds the entire production time e.g. over voltage cycling test for

capacitors etc.. Facilities for some of the type tests for some



equipment are not available in India for which these equipment are

being sent abroad for testing.

In view of the increasing grievances of the manufacturers regarding

type test requirements mandated by the utilities in their

specifications and requests from many utilities , Central Electricity

Authority (CEA) had organized a meeting with all major

stakeholders on 10.09.2018 to deliberate and standardize the

duration of validity of type tests conducted on transmission system

equipment. All manufacturers and utilities had emphasized the

need of uniform guidelines in this regard across the utilities in the

country as this is unnecessarily leading to wastage of national

resources, time & money and increasing burden on manufacturer

and cost to the end consumers. Therefore, there is need to address

such issues and develop uniform practice /guidelines relating to

period of validity of type test reports of major electrical equipment

in Power transmission system for the benefits of end users, utilities

and manufacturers in the country considering the cost/

complexity associated with frequent type testing of the equipment.

2. Broad Guidelines

a) Type tests on indigenous equipment, for which testing facility

is available in India, should have been conducted in any

independent laboratories approved by Government or

accredited by National Accreditation Body of the Country, like

Central Power Research Institute (CPRI), Electrical Research

and Development Association (ERDA) etc.



b) Type tests on indigenous equipment, for which testing facility

is not available in India, should have been conducted in a

laboratory of foreign Country accredited by National

Accreditation Body of that Country.

c) Type tests on imported equipment should have been

conducted in an Indian laboratory or foreign laboratory

accredited by National Accreditation Body of respective

Country.

d) The type tests conducted in-house by manufacturers shall also

be acceptable provided the lab is accredited by National

Accreditation Body of the Country and the tests have been

witnessed by a representative of NABL accredited laboratory/

Power Utility.

e) The result of all type tests shall be recorded properly in Type

Test Reports (TTRs) containing sufficient information like the

ratings, the relevant drawings, model number, test circuit,

calculations (if any), photos and compliance to the relevant

standards (IS/IEC) etc. The relevant clauses of the standards

(IS/IEC) according to which type tests have been conducted

and acceptance criteria/values need to be brought out clearly

in the report.

f) All the testing equipment used for type testing should have

been duly calibrated and the valid calibration reports should

form part of the Type test reports.



g) The equipment shall be supplied from the same manufacturing

works, where from the sample unit was manufactured and

successfully type tested as per relevant standard (IS/IEC).

h) Validity period of type tests conducted on the equipment i.e.

the period for which Type Test Reports (TTRs) shall remain

valid and acceptable to user/ utility provided no major change

has been introduced in the basic design/ technology/

material/ mechanical construction/ functionalities of the

equipment/ performance characteristic/ manufacturing

process of the equipment, shall be as follows:

Sl. No. Name of Equipment Periodicity (in

years)

i. Power Transformer 5

ii. Distribution Transformers

(33 kV and below)

5

iii. Shunt Reactor 5

iv. OLTC 10

v. Power transformer Bushing /

Reactor Bushing

7

vi. Transformer/reactor fittings

and Accessories

10



vii. Circuit Breaker 10

viii. Isolator 10

ix. Lightening Arrester 10

x. Wave Trap 10

xi. Instrument Transformers 7

xii. LV and MV Switchgear 10

xiii. GIS & Hybrid Switchgear 10

xiv. Cables and associated joints 10

xv. Capacitor 10

xvi. Relays 7

xvii. Energy Meter (including smart

meters and ABT meters)

5

xviii. Battery and Battery Charger 7

xix. Conductors and earth wire 10

xx. High Temperature (HT) / High

Temperature Low Sag

Conductor (HTLS) conductor

7

xxi. Insulators (Porcelain/ Glass) 10

xxii. Composite Insulator 5



xxiii. PLCC/ FO cable / OPGW 5

xxiv. Transmission Line insulator

hardware fittings, and

accessories for conductor &

ground wire

7

Note 1: The type tests reports shall be valid as on the last date

of submission of bid.

Note 2: The period of validity of Short Circuit test (a special

test) conducted on transformer shall be as per CEA (Technical

Standards for Construction of Electrical Plants and Electric

Lines) Regulations.

Note 3: Type test reports of 220kV voltage class equipment

shall be valid for 230kV voltage class equipment as the highest

system voltage is same in both cases provided Basic Insulation

Level is same.

i) The type tests of the equipment shall be repeated during its

validity period, if there is change in technology or basic design

or generic materials employed or manufacturing process or

combination of any of above. However, minor changes, which

have no effect on functionality & reliability of the equipment,

may not require repetition of type tests. Minor changes do not

include change in electrical stress, thermal stress, mechanical

stress, change in construction, change in dielectric material,

impregnating oil, thickness of electrode & internal fuse design



in a capacitor, enclosure materials (magnetic, non-magnetic

like stainless steel, Aluminum) etc.

j) If relevant standard (IS/IEC) of the equipment is revised or

amended, fresh type test is warranted even if equipment has

not changed in design/ material etc. However fresh type

testing will be limited to only those tests for which test

procedure/ method, any technical requirement or test levels

have been changed in the revised standards. In such cases,

enough time should be given to manufacturer to comply with

revised provision in standards.

k) The utilities should co-relate the need of repeating type test(s)

to changes in design/technology and may emphasize/ insist

for stage inspection to check workmanship, manufacturing

process and to ensure quality of the component/ material used

in the manufacturing of the equipment.

l) The change in the make of component(s) of the equipment shall

not be the criteria for repetition of type tests provided that the

component of new make has been successfully type tested and

its use shall not affect the, functionality, performance &

reliability of the equipment. The type test reports of the

component of new make shall be submitted.

m) Utilities, if so desires, may repeat the type tests, at their own

cost even if valid TTRs have already been provided by the

bidder/manufacturer. However, the utilities should refrain

from making it a regular practice. The utility must clearly



specify which type tests would be repeated in the event of

award of the contract and quotation for such tests should be

invited separately in the price bid. In such case utility shall

provide extra time for repetition of such type tests.

n) The philosophy of extending type test results of the equipment

is based on two primary factors: similar design and design with

higher stresses (electrical, mechanical, thermal, and

environmental). Validity of type test report of a equipment can

be extended to the same equipment of similar design and/or

lower design stress provided relevant standard (IS/IEC)

permits.

o) It is practically impossible to subject all possible arrangements

of the GIS (for a particular switching scheme corresponding to

a specified voltage level) to type tests as various arrangements

are possible using same combination of equipment depending

on layout arrangement and space availability. The

performance of any particular arrangement shall be

substantiated from type test results obtained on representative

assemblies or sub-assemblies. The user shall check to ensure

that tested sub-assemblies can be a representative form of the

user’s arrangement and meet his desired requirement/

objective.

p) For capacitors, the successful completion of each type test is

also valid for units having the same rated voltage and lower

output (KVAR), provided that they do not differ in any way (i.e.



design, construction, material, and production process etc.)

that may influence the properties to be checked by the test.

q) Repetition of short circuit test on transformer is not required

due to change in make and type of bushings and/or make of

OLTC provided bushings and OLTC of supplied make have

same or better rating and have been successfully type tested

as per relevant IS/ IEC.

r) The utility shall not reject the transformer for supply against

the contract, if the Short Circuit (SC) tests was conducted on

the subject transformer as per relevant standard (IS/IEC) and

it has successfully passed the SC tests and other type tests as

per relevant standards.

**************************************************

Attached list1. Chairman & Managing Director,

Powergrid Corporation of India Ltd., Saudamini, Plot No. 2, Sector-29,Gurgaon-122001 (Haryana)

2. Chairman & Managing Director, Delhi Transco. Ltd., Shakti Sadan, Kotla Marg, New Delhi-110002

3. Chief Engineer(Electrical)Goa Electricity DepartmentVidyut Bhawan, Panaji, Goa-403001

4. ChairmanHaryana Vidyut Prasaran Nigam Ltd.Shakti Bhawan, Sector No. 6Panchkula - 134 109, Haryana

5. Managing DirectorHimachal Pradesh State Electricity BoardVidyut Bhawan, Shimla- 171 004

6. Managing DirectorJammu & Kashmir Power Development Corporation Ltd. Exhibition Ground, Srinagar (J&K) -190009

7. ChairmanKarnataka Power Corporation Ltd82, Shakti Bhawan, Race Course RoadBangalore- 560 001

8. ChairmanKerala State Electricity BoardBoard SecretariatVidyuthi Bhavanam PattomThiruvananthapuram- 695004

9. Chairman & Managing DirectorMaharashtra State Electricity Transmission Company Ltd., C-19, E-BlockPrakashganga, Bandra-Kurla ComplexBandra(E), Mumbai 400 051

10. Chief Engineer(P)Manipur Electricity DepartmentGovt. of Manipur, Manipur Sectt.


South Block, Imphal, Manipur- 795 001

11. Chairman & Managing DirectorMeghalaya Energy Corporation Ltd.Lumjingshai Short Round RoadShillong- 793 001

12. The Engineer-in-ChiefPower and Electricity Deptt., Govt. of Mizoram,Power House, Bara BazarAizwal- 796 001, Mizoram

13. Chief EngineerNagaland Department of PowerKohima 797 001Nagaland

14. Chairman & Managing DirectorPunjab State Power Corporation Ltd.The Mall, Patiala- 147 001, Punjab

15. Chairman & Managing DirectorRajasthan Rajya Vidyut Prasaran Nigam Ltd.Vidyut Bhawan, JanpathJaipur (Rajasthan)-302005

16. Managing DirectorSikkim Power Development Corporation Ltd.31-A, N.H. Way, Gangtok- -737 101

17. Chairman & Managing DirectorTripura State Electricity Corporation Ltd.Govt. of Tripura, Agartala- 799 001

18. Chairman & Managing DirectorUttar Pradesh Power Corporation Ltd.Shakti Bhawan, 14-A, Ashok MargLucknow- 226 001.

19. Chairman & Managing DirectorWest Bengal Power Development Corporation Ltd.Bidyut Unnayan Bhaban, Plot 3/CLA-Block, Sector-III, Salt Lake City,Kolkata- 700 098

20. Secretary(P)Andaman and Nicobar Electricity Department,


Secretariat, Andaman and Nicobar Islands,Port Blair- 744 101

21. SecretaryDadra & Nagar Haveli Electricity Department,Dadar Nagar Secretariat,Silvassa- 396230

22. SecretaryDaman & Diu Electricity DepartmentDadar Nagar Secretariat, Moti Daman- 396220

23. SecretaryLakshyadeep Electricity DepartmentU.T. of LakshyadeepKavaratti- 682555

24. SecretaryPuducherry Electricity DepartmentSecretariat, Puducherry- 605001

25. Chairman & Managing DirectorOrissa Power Transmission Corporation Ltd.Janpath, Bhubaneswar- 751 022.

26. Chairman

Jharkhand Urja Sancharan Nigam Ltd.Engineering Building, HECDhurwa, Ranchi- 834 004

27. ChairmanWest Bengal State Electricity Transmission Company Ltd (WBSETCL)Vidyut Bhawan, Block-DJ, Sector-II,Bidhan Nagar, Kolkata- 700 091.

28. Managing DirectorBihar State Power (Holding) Company Ltd.Vidyut Bhawan, Bailey RoadPatna- 800 021

29. Chairman and Managing DirectorGujarat Energy Transmission Corporation Ltd.Sardar Patel Vidyut Bhawan,Race Course , Vadodara- 390 007

30. Managing DirectorMadhya Pradesh Power Transmission CompanyLtd. Block No. 2, Shakti Bhawan


Rampur, P.O. Vidyut NagarJabalpur- 482 008(MP)

31. Managing DirectorChhattisgarh State Power Generation Company Ltd., Vidyut Seva BhawanP.O. Sunder Nagar, Danganiya,Raipur- 492 013.(Chhattisgarh)

32. Chairman & Managing DirectorPunjab State Transmission Corporation Ltd.,The Mall, Mall Road,Patiala- 147 001, Punjab

33. Managing DirectorHimachal Pradesh Power Transmission Corporation Ltd.Barowalia House, KhaliniShimla- 171 004.

34. Chairman & Managing DirectorUttar Pradesh Power Transmission Corporation Ltd.Shakti Bhawan, 14-A, Ashok Marg,Lucknow- 226001

35. Chief Engineer (Power) Department of Power Govt. of Arunachal Pradesh Itanagar (Arunachal Pradesh) – 791 111

36. Chief Engineer(Transmission) Transmission Corporation of Andhra Pradesh Ltd. Vidyut Soudha, Gunadala Eluru Road, Vijaywada, Andhra Pradesh – 520 004

37. Managing Director Karnataka Power Transmission Corporation Ltd., Kaveri Bhawan Bangalore-560009

38. Chairman & Managing DirectorTransmission Corporation of Telangana Ltd.Vidyut Soudha, Khairatabad,Hyderabad - 500082

39. Managing DirectorAssam Electricity Grid Corporation Ltd.Bijulee Bhawan,


Paltan BazarGuwahati- 781 001

40. Chairman & Managing DirectorTripura State Electricity Corporation Ltd.Govt. of Tripura,Bidyut BhawanAgartala- 799 001.

41. Managing DirectorPower Transmission Corporation of Uttarakhand Ltd.Vidyut Bhawan, Saharnpur Road, Near I.S.B.T. Crossing, Dehra DunUttarakhand -248002

42. Managing DirectorTamil Nadu Transmission Corporation Limited 10th Floor/NPKRR Malikai, No. 144 Anna Salai,Chennai-600002

43. Chairman & Managing DirectorNational Thermal Power Corporation Ltd.NTPC Bhawan, Core 7, Scope Complex7, Institutional AreaLodhi Road, New Delhi-110003

44. Chairman Damodar Valley Corporation,DVC Towers, VIP Road,Kolkata – 700 054

45. Managing Director Assam Power Generation Corporation Ltd.

Bijulee Bhawan, Paltan Bazar, Guwahati- 781 001.

46. Managing DirectorMadhya Pradesh Power Generating Co. Ltd.Shakti Bhawan, VidyutnagarP.O. Jabalpur- 482 008.

47. Managing DirectorHaryana Power Generation Corporation Ltd.Urja bhawan, C-7, Sector-6Panchkula, Haryana-13410


48. ChairmanGujarat Urja Vikas Nigam Ltd.Sardar Patel Vidyut Bhawan,Race Course, Vadodara- 390 007

49. Chairman & Managing Director U.P. Rajya Vidyut Utpadan Nigam Ltd.Shakti Bhawan14- Ashok MargLucknow-226001

50. Chairman & Managing DirectorNEEPCO Ltd.Brookland CompoundShillong – 793003

51. Managing Director Maharashtra State Power Generation Co. Ltd. Prakashgad, Plot No. G-9, 4th Floor Bandra(E), Mumbai-400051

52. Chairman Indraprastha Power Generation Co. Ltd. Office of PRO, Himadri Rajghat Office Complex New Delhi.

53. Chairman & Managing Director Block-1 Neyveli-607801NLC India LimitedCuddalore District, Tamilnadu

54. Chairman & Principal Secretary (Energy) A.P. Power Generation Corporation Ltd.

Vidyut Soudha, Gunadala Eluru Road, Vijaywada

Andhra Pradesh – 520 004

55. Chairman & Managing Director Orissa Power Generation Corporation Ltd.Zone- A, 7th floor, Fortune TowersChandrasekharpur,

Bhubaneswar- 751 023.

56. Chairman & Managing Director Rajasthan Rajya Vidyut Utpadan Nigam Ltd. Vidyut Bhawan, Jyoti Nagar Jaipur (Rajasthan)


57. Chairman & Managing DirectorChhattisgarh State Power Holding Company Ltd., Vidyut Seva BhawanP.O. Sunder Nagar, Danganiya, Raipur- 492 013 (Chhattisgarh)

58. Chairman & Managing DirectorTANGEDCO10th Floor/NPKR Ramasamy Malikai, No. 144, Anna Salai, Chennai- 600 002

59. Chairman & Managing DirectorTelangana State Power Generation Corporation Ltd.Vidyut Soudha, KharatabadHyderabad – 500082

60. ChairmanJharkhand Urja Utpadan Nigam Ltd.Engineering Building, HECDhurwaRanchi-834004

61. Chairman & Managing DirectorBharat Heavy Electricals Ltd.BHEL House, Siri Fort,New Delhi-110049

62. Chairman & Managing DirectorToshiba Transmission & Distribution System(I) Pvt. Ltd.Rudraram, Patancheru Mandal, Medak District,Telangana-502329

63. ChairmanBhakra Beas Management Road,Sector-19B, Madhya MargChandigarh-160019

64. Chairman & Managing DirectorPragati Power Corporation LimitedHimadri, Rajghat Power House Complex,New Delhi – 110002

65. Managing DirectorUttarakhand Jal Vidyut Nigam Ltd.Maharani Bagh, G M S Road,Dehradun, Uttarakhand- 248 008

66. Chairman & Managing DirectorNational Hydro Power Corporation Ltd.


Corporate Office, NHPC Office Complex,Sector 33, Faridabad 121 003, Haryana

67. Chairman & Managing DirectorSJVN LIMITEDHimfed Building,New Shimla 171 009

68. Chairman & Managing DirectorTHDC INDIA LTD.Pragatipuram, Bye Pass Road,Rishikesh 249 201 (Uttarakhand)

69. Head- Transmission BusinessAdani Transmission (India) Ltd.,Sambhav HouseJudges Bungalow Road, BodakdevAhmedabad 380015, Gujarat

70. Shri. T. A. N. ReddyVice president B. D. & Corporate Affairs (Sterlite Power)

F – 1, The Mira Corporate Suits, 1 & 2, Ishwar Nagar,Mathura Road, New Delhi 110065

71. L&T Infrastructure Development Projects Limited (L&T IDPL),L&T campus TCTC Building, First Floor,Mount Poonamallee Road, Manapakkam,Chennai - 600089, Tamil Nadu, India.

72. Essel Infraprojects Limited6th Floor, Plot No. 19 & 20, Film City, Sector 16A,Gautam Buddha Nagar, Noida 201301.

73. ABB Power Products and Systems India Limited(A Hitachi ABB Joint Venture)8th floor, Brigade Opus, 70/401,Kodigehalli Main Road, Bangaluru-560092

74. GE T&D India Limited A225, A Block, Sector 83, Noida, Uttar Pradesh-201305

75. Telawne Power Equipments Private Limited Lodha Supremus – II, A – 129, Rd No. 22. Wagle Estate, MIDC, Thane (W) –400604

76. The Chief EngineerDistribution Planning & Technology Division, Central Electricity Authority

77. Director General


CENTRAL POWER RESEARCH INSTITUTE (CPRI)Prof.Sir C.V.Raman Road, Post Box No: 8066,SadaShiva Nagar (p.o),Bangalore, India , Pincode : 560 080

78. DirectorElectrical Research & Development Association (ERDA)ERDA Road, GIDC MakarpuraVadodara – 390 010Gujarat

79. The PresidentIndian Electrical and Electronics Manufacturers Association (IEEMA)Rishyamook Building, First Floor85 A, Panchkuian RoadNew Delhi – 110001

80. Director GeneralIndian Transformer Manufacturers Association (ITMA)2F CS-11, Ansal Plaza, Sector-3 Near Vaishali Metro Station (Opp. Bhushan Steel)Vaishali,Ghaziabad, U.P- 201 010


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